JP2018113935A - Raising seedling apparatus of cedar seedlings, and seedling raising method of cedar seedlings - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide raising seedling apparatus of cedar seedlings and seedling raising methods of cedar seedlings which enable the increase of efficiency in cedar forest afforestation.SOLUTION: One end of a seedling raising container 2 in which a polyethylene sheet is formed into a cylindrical shape is attached to a plurality of storage holes provided in a tray, a simple cultivation solid soil 5 obtained by hardening coconut peat in a disk shape is stored in a seedling raising container mounted in each of a plurality of storage holes, and water is supplied to simple cultivation solid soil in a raising seedling apparatus for cedar seedlings seeded on the simple cultivation solid soil. By setting the species to be stored in the seedling raising container to be a cedar species without male flowers, cedar forest not generating cedar pollen causing pollinosis that needs for rapid measures can be developed efficiently in a short period of time.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a cedar seedling breeding apparatus and a method for raising a cedar seedling using the seedling seedling growing apparatus, which enables the growth of cedar seedlings from seeds in a short period of time while maintaining the optimum environment for growing cedar seedlings. .

It has been pointed out that cedar pollen is often the cause of hay fever, which currently affects a large number of people and requires countermeasures. On the other hand, forests are water reservoirs, and the existence of cedar forests is extremely important to preserve their functions.
In view of these points, the conservation of forests by breeding cedars without male flowers with stamens for pollen is being studied.

  In general, when planting trees in a forest, when trying to cultivate tree seedlings for planting, the seedlings were sown on the nursery and grown over three years in the field, and the resulting seedlings were used for afforestation. . At that time, the first seeding was carried out until the actual plantation was met, and then planting was carried out twice to obtain seedlings for planting. After planting, cedar trees forming a forest are obtained in 15-20 years. However, the work was consistently done manually.

  By the way, in order to always maintain the optimal growth environment of plants such as cedar forests, Patent Document 1 discloses that an artificial culture medium is packaged with a packaging sheet made of a material that allows water and air to communicate smoothly, and maintains a certain form. A medium cell, an aerial flowerpot in which the medium cell is built, and a water hole is formed so that a sufficient amount of air and nutrient solution can communicate with the medium of the medium cell, and the aerial flowerpot is installed in the aerial flowerpot. A cooling / heating air pipe that cools and heats the root part of the plant installed in the lower part of the culture cell, and automatically circulates the nutrient solution to the plant planted in the culture cell located higher than the water source. A plant cultivation apparatus comprising a nutrient solution supply table to be supplied has been disclosed.

JP 2000-217449 A

The plant cultivation apparatus disclosed in Patent Document 1 has an object of always maintaining the optimal growth environment of plants in general, so that grown trees planted in an artificial medium can be moved to another place. Its content is to make it a standard, and in particular, it has not been possible to improve the efficiency of cedar forest plantations.
An object of the present invention is to provide a cedar seedling raising apparatus and a cedar seedling raising method that can improve the efficiency of cedar forest plantation.

  That is, the seedling raising device for cedar seedlings of the present invention has a plurality of storage holes of a seedling bed comprising a polyethylene sheet and a tray having a plurality of storage holes for holding a seedling container in which the polyethylene sheet is cylindrical. A simple cultivated solid soil obtained by consolidating coconut peat into a disk shape is housed in the seedling container attached to each.

  In the cedar seedling raising method of the present invention, one end of a seedling container in which a polyethylene sheet is formed in a cylindrical shape is attached to a plurality of storage holes provided in a tray, and the seedlings attached to each of the plurality of storage holes A container for storing a simple cultivated solid soil obtained by solidifying a coconut peat in a disc shape in a container, a seedling raising device for cedar seedlings sown in the simple cultivated solid soil, wherein water is supplied to the simple cultivated solid soil, Planting a cedar forest that does not cause hay fever by placing the seedling breeding device in a temperature-controllable house so that the seeds stored in the seedling container are cedar seeds without male flowers Can be carried out efficiently.

It is a fragmentary perspective view of the seedling raising device of one embodiment of the present invention. It is a partial side view of the seedling raising apparatus of one embodiment of this invention shown in FIG. It is a partial top view of the seedling raising apparatus of one embodiment of this invention shown in FIG. It is a perspective view of the material used for the seedling raising apparatus of one embodiment of this invention shown in FIG. It is a partial model side view of the seedling raising apparatus of one embodiment of this invention shown in FIG. It is a partial schematic side view of the seedling raising apparatus of other embodiment of this invention.

Embodiments of the present invention will be described below.
The cedar seedling raising device 1 of the present invention comprises a tray 4 having a plurality of storage holes 3 for holding a seedling raising container 2 in which a polyethylene sheet is cylindrical.
The polyethylene sheet is formed in a corrugated plate shape, and the corrugated polyethylene sheet is rolled into a cylindrical shape to form a seedling container 2.
Such a seedling container 2 can be adjusted steplessly in accordance with the species of the pot diameter and depth, and has a very high degree of freedom.

An aerial training system is employed in which the seedling container 2 is mounted and held in the storage hole 3 of the tray 4 having a plurality of storage holes 3. By doing so, the vertical corrugated vertical muscle of the seedling container 2 and the opening of the bottom by the aerial training system prevent root looping phenomenon, and the ideal vertical length vertical root with good survival rate. Can be formed. In addition, the height of the roots and roots can be adjusted freely by adjusting the cut tone and winding of the sheet. Moreover, the installation intervals of the plurality of storage holes 3 of the tray 4 can be freely adjusted.
Moreover, by unfolding the seedling container 2 formed by rolling up the sheet, it is possible to easily confirm the removal of seedlings and the development of roots in the seedlings.

A simple cultivated solid soil 5 obtained by solidifying coconut peat into a disk shape is accommodated in the seedling raising container 2.
Coconut peat is a completely organic product that uses only coconut shells, and is a natural resource that is obtained by depositing and fermenting the fibers of a fibrous layer that forms the hard shell of coconut fruit.
This coconut peat absorbs moisture quickly and is well-familiar with bark compost and field soil, and unlike peat moss, it can absorb water repeatedly even once dried. Moreover, it is not necessary to neutralize with ideal pH (5.4 to 6.8) lime.
Moreover, since the air porosity is high and the air permeability is good, the soil can be made without tightening, and the growth of plants is also good.

  In this Embodiment, the water tank 6 which is a water supply means with respect to the simple cultivation solid soil 5 accommodated in the seedling raising container 2 is provided. In this way, water can be supplied into the seedling raising container 2 by arranging the tray 4 having a plurality of storage holes 3 for holding the seedling raising container 2 made of a polyethylene sheet in a cylindrical shape in the water tank.

The method for raising cedar seedlings of the present invention is performed using the cedar seedling raising device 1 of the above-described embodiment.
That is, one end of a seedling container 2 having a cylindrical polyethylene sheet is attached to a plurality of storage holes 3 provided in the tray 4, and a coconut peat is placed in the seedling container 2 mounted in each of the plurality of storage holes 3. The simple cultivated solid soil 5 that is hardened into a shape is stored, and water is supplied to the simply cultivated solid soil 5 of the cedar seedling breeding apparatus 1 seeded on the simple cultivated solid soil 5. In this embodiment, the seeds stored in the seedling container 2 are cedar seeds without male flowers, so that cedar forests that cause hay fever for which rapid countermeasures are required are not efficiently generated in a short period. Can be created between.
Moreover, in carrying out the method for raising cedar seedlings according to the above-described embodiment, the cedar seedling raising device 1 is further placed in a temperature-controllable house to further plant cedar forests that do not cause hay fever. It can proceed efficiently.

  According to the cedar seedling raising device 1 and the cedar seedling raising method of the above embodiment, it is possible to improve the efficiency of production work and reduce the labor load, and it is possible to improve the space efficiency by using the raising seedling bench. Become. In addition, a hole is opened in the bottom surface of the seedling raising container 2, and roots that have arrived at the lower part of the seedling raising container 2 perform aerial root cutting that stops the growth of natural roots when they come into contact with the air. Also, mechanization such as sowing and soiling work is possible, and since it is a root pot with a uniform shape, using a special planting tool enables simple planting and increases the efficiency of planting work. Can be planned.

  The polyethylene sheet forming the seedling container 2 is formed in a corrugated plate shape, so that the ribs on the inner surface of the seedling container 2 formed thereby do not cause root winding and can be planted with soil attached to the roots. Becomes better. Furthermore, since the production period can be shortened, it is easy to produce in accordance with logging, so it is easy to use for integrated operations of logging and afforestation, and a reduction in afforestation costs can be expected.

In another embodiment of the present invention, the seedling raising container 2 is formed by making a biodegradable plastic sheet into a cylindrical shape.
Biodegradable plastics are completely consumed by microorganisms and produce only natural byproducts (carbon dioxide, methane, water, biomass, etc.). These biodegradable plastics include bioplastics derived from biological resources (biomass) and those derived from petroleum. The mainstream is bioplastic, and many are made from starch. The main biodegradable plastic components include polylactic acid, polycaprolactone, polyhydroxyalkanoate, polyglycolic acid, modified polyvinyl alcohol, casein, and modified starch. There is a PET copolymer from petroleum.

  FIG. 6 shows a seedling raising device 1a according to still another embodiment of the present invention. In this embodiment, 5 cm square rock wool 7 is placed on the bottom of the seedling raising container 2a, and then the simple cultivated solid soil 5 made of coconut peat is hardened in a disk shape.

Examples of the method for raising cedar seedlings of the present invention will be described below.
[Example 1]
From April to May 2015, seeded on rock wool medium (culture mat) (5 grains per hole) and germinated in a water tank. Filled with coconut floc in a seedling container from May to June, filled with water absorption and expansion (Example 1-1) Example 1 with 120 bodies and 5 cm square rock wool placed on the bottom of the seedling container As in -1, one filled with coco peat (Example 1-2) 120 bodies were prepared, and the culture mat was cut into each hole and transplanted with cedar seedlings.

After that, the water level was kept at 3cm, and on July 10, it was moved to the pool in the Toyama Prefectural Forest Research Institute site.
However, since the water temperature in the pool increased and some of the cedar seedlings of the institute died out later, it was moved back to its original location on July 28 and the follow-up was continued in the pool on the rooftop.
On December 14, they moved to the windows in the room to avoid the effects of snow in winter, and moved again to the rooftop pool on March 17, the following year.
Temporary pool at the head office roof used for raising seedlings (taken on October 1)

[Results of Example 1]
Table 1 shows the number and survival rate of seedlings as of April 27, 2016, and the state of the seedlings.
The cedar seedlings sown on May 26 were inferior to the cedar seedlings sown on April 10, and died while they were deposited at the Toyama Forest Research Institute. This is thought to be due to the poor seedling growth at the time of transplantation due to the late sowing time. In addition, the survival rate was higher in cocopit + rock wall than in the case of cocopit alone. It is thought that the water absorption and water retention of the rock wall have avoided drought stress. Individuals that die in winter were seen regardless of seeding / transplantation time and culture medium. This may be due to low temperatures and low sunshine during this period.

[Example 2]
On May 13, 2016, seeded (5 grains per hole) in rock wool medium (power luchar mat) and germinated in a shallow water tank. On June 8 of the same year, the culture mat was cut for each hole, and cedar seedlings were transplanted to the medium shown in Table 2. In Table 2, in Examples 2-1 to 2-3, a seedling container 2 in which a corrugated polyethylene sheet is formed in a cylindrical shape is used, and in Example 2-4, a seedling is formed in which a biodegradable plastic sheet is formed in a cylindrical shape. Container 2 was used.
In Example 2-3, 5 cm square rock wool placed on the bottom of the seedling raising container 2 and filled with coco peat was used.
After that, the water level in the aquarium was kept at 3cm and moved to the pool on the Toyama Prefectural Forest Research Institute site on July 10.

DESCRIPTION OF SYMBOLS 1 ... Nursery device, 2 ... Nursery container, 3 ... Storage hole, 4 ... Tray, 5 ... Simple cultivation solid soil, 6 ... Water tank

Claims (8)

A coconut peat is disc-shaped in the seedling container mounted in each of the plurality of storage holes of a seedling bed comprising a cylindrical seedling container and a tray having a plurality of storage holes for holding the cylindrical seedling container. A seedling raising device for cedar seedlings, characterized in that it contains simple cultivated solid soil that is hardened into a cedar. The seedling raising device for cedar seedlings according to claim 1, wherein the cylindrical seedling container is formed of a corrugated polyethylene sheet in a cylindrical shape. The cedar seedling raising apparatus according to claim 1, wherein the cylindrical seedling container has a cylindrical biodegradable plastic sheet. The cedar seedling raising apparatus according to any one of claims 1 to 3, further comprising a water supply means for the simple cultivated solid soil stored in the seedling container. The seedling raising device for cedar seedlings according to any one of claims 1 to 4, wherein rock wool is housed in the seedling container and the simple cultivated solid soil is housed therein. One end of a seedling container made of a corrugated polyethylene sheet is attached to a plurality of storage holes provided in a tray, and coconut peat is hardened in a disk shape in the seedling container attached to each of the plurality of storage holes. A method for raising seedlings of cedar seedlings, comprising: storing the simple cultivated solid soils, and supplying water to the simple cultivated solid soils of a cedar seedling raising seedling device sown in the simple cultivated solid soils. The method for raising cedar seedlings according to claim 4, wherein the seeds stored in the seedling container are cedar seeds without male flowers. The method for raising cedar seedlings according to claim 6 or 7, wherein the cedar seedling raising device is arranged in a temperature-controllable house.

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